Carbureter



No. 615,572. Y Patented nee. 6, |898.

` o. owENs.

CARBUBETER..

(Application tiled Nov. 12, 1897.)

(N70 Model.)

EXHAUST UNTTEDv STATES PATENT OEEICE.

OSCAR OWENS, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO THE AMERICAN TYPE FOUNDERS COMPANY, OF NEW JERSEY.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 615,572, dated December 6, 1898.

Applicatlon filed November 12, 1897. Serial No. 658,321. (No model.)

To all whom it may concern,.-

Be it known that I, OSCAR OWENS, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvement-s in Carloni-eters; and I do hereby declare that the 'following is a full, clear, and exact description thereof.

My invention relates to generators ofexplosive mixtures for operating gas or vapor engines, and particularly to that kind of a generator which is arranged as au attachment to such an engine and in which oil, such as crude petroleum, is vaporized by heat derived from the exhaust mixed with air and supplied to the engine-cylinder in charges, which are successively exploded and exhausted after explosion.

My invention consists in improvements in the construction and arrangement of a generator for this purpose and is fully described in this specification and shown in the accomy panying drawings, in which-- Figure 1 is a side elevation partly broken away to show a longitudinal section of the generator. Fig. 2 is a plan view with the outer shell broken away. Fig. 3 is a crosssection on line x x of Fig. 2.

A represents the generator, which is preferably a tubular casting adapted to be secured in any suitable way to the exhaust-passage of the engine, so that the exhaust or product of each explosion shall pass through the central passage c. and escape through the connected pipe b. The tubular part A is of substantially rectangular shape in cross-section, Fig. 3, and its upper surface is channeled, as shown at c, and provided with ribs d of less width than the channel and arranged alternately so as to make a tortuous passage from end to end, Fig. 2.

The device is arranged on a slight incline from the horizontal, as shown. Below the central passage is a second passage c, communicating with the upper surface by one or more hollow legs f, and having a draw-0E cock g. Themain casting is surrounded by a shell A to prevent the escape of heat and gas. Into this shell opens an airpipe C, which supplies air necessary to produce the proper explosive vapor and an oil-supply pipe D, having regulating means and which drops the oil upon the channeled face of the casting at its elevated end. This oil spreads int-o a film or sheet and the inc-line of the surface upon which it is deposited causes it to pursue a tortuous course toward the exhaust-inlet. The exploded charges from the engine entering and passing through the tube ct at a high temperature correspondingly heat the surface upon which the oil is traveling and vaporize the latter. The vapor mingles with and carburets the air, producing the explosive mixture which is drawn off at the gas-pipe E in condition to be used in the engine-cylinder. The pipe E is supposed to be connected to the inlet of the engine, so that the 'suction stroke of the piston draws the explosive charge into the engine-cylinder, and also draws fresh air into the generator.

The residuum of the oil iiows through the passages fand can be drawn oi by the cock g.

F represents a vent-pipe located at the exhaust-inlet tothe generator, and 7L is a valve in such vent by which it may be closed or opened. A valve t' is also placed in the exitpipe b. This vent and valve can be used to prevent overheating of the generator. By opening the vent F and closing the pipe b the hottestportion of the exhaust escapes through the vent, and I have found in practice that by this means the temperature of the gener ator is reduced and need never become excessive.

The construction .by which I obtain a generating-surface heated by hot products of combustion in an interior tube gives a large extent of generating-surface and exposes all parts of it to the heating agent. This comparatively thin heatingplate produces very quick and eective vaporization.

I have mentioned my apparatus as partioularly' designed for vaporizing petroleum; but it is capable of use in connection with coal-oil, gasolene, or with any oil adapted to form an explosive mixture when mingled with air.

From the above description the operation' of the device `will be clearly apparent, but may be briefly stated as follows: The exhaust- IOO v claim isl. A carbureter comprising a casting having a channeled exterior heating-surface, and adapted to be connected to the exhaust-passage of the engine, av passage through said casting for the exhaust, a second passage adjacent thereto and communicating with the heatingsurface in order to receive the residuum left by vaporization, an inclosing shell, and airand oil pipes entering said shell, substantially as described.

2. In acarbureter, and in combination, an inclosing shell having air and oil inlets, a heater within the shell having a channeled heatingsurface, a flue through the heater adapted to be connected to the exhaust of an engine, a passage adjacent to said flue, tubes connecting said passage with the heatin g-su rface, and a discharge-opening from said passage; whereby the oil is vaporized and carbureted on the heating -surface by the ex= haust passing through said iue, while the residuum passes through said tubes to said passage, and is discharged therefrom.

3. As an article of manufacture, a casting Vto forni part of a carbureter, having a chauneled surface, a iiue extending through said casting below said channeled surface, a passage in the casting parallel to said flue, tubes passing across the flue and connecting said passage and the channeled surface, and a discharge-opening from said passage.

4. In a generator for gas-engines and in combination, an inclosing shell having air and oil pipes entering it, a generator within the same, and having a heating-passage and a heating-surface, said generator being adapted for connection with the exhaust-passage of the engine, an exhaust-vent between the exhaust connection and said heating-passage and provided with a cut-off, and a cut-off for closing the said heating-passage,substantiall y as described.

In testimony whereof I have affixed my signature, in p resence of two Witnesses, this 4th day of August, 1897.

oscAR owENs.

Witnesses:

L. W. SEELY, MARIE J. DIETZ. 

